import {login, logout, getInfo} from '@/api/login/login';
import {getToken, setToken, removeToken} from '@/utils/auth';
import {resetRouter} from '@/router';

const getDefaultState = () => {
  return {
    token: getToken(),
    name: '',
    avatar: '',
  };
};

const state = getDefaultState();

const mutations = {
  RESET_STATE: (state) => {
    Object.assign(state, getDefaultState());
  },
  SET_TOKEN: (state, token) => {
    state.token = token;
  },
  SET_NAME: (state, name) => {
    state.name = name;
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar;
  },
};

const actions = {
  // user login
  login({commit}, userInfo) {
    return new Promise((resolve, reject) => {
      login(userInfo).then(response => {
        const {data} = response;
        commit('SET_TOKEN', data);
        setToken(data);
        resolve();
      }).catch(error => {
        reject(error);
      });
    });
  },

  // get user info
  getInfo({commit}) {
    return new Promise((resolve, reject) => {
      getInfo().then(response => {
        const {data} = response;
        if (!data) {
          return reject('验证失败，请重新登录。');
        }

        const {userName, userAvatar} = data;

        commit('SET_NAME', userName);
        commit('SET_AVATAR', userAvatar);
        resolve(data);
      }).catch(error => {
        reject(error);
      });
    });
  },

  // user logout
  logout({commit}) {
    return new Promise((resolve, reject) => {
      logout().then(() => {
        removeToken(); // must remove  token  first
        resetRouter();
        commit('RESET_STATE');
        resolve();
      }).catch(error => {
        reject(error);
      });
    });
  },

  // remove token
  resetToken({commit}) {
    return new Promise(resolve => {
      removeToken(); // must remove  token  first
      commit('RESET_STATE');
      resolve();
    });
  },
};

export default {
  namespaced: true,
  state,
  mutations,
  actions,
};

